MySQL的bin目录下提供了perror.exe工具，使用方法如下：

# /usr/local/mysql/bin/perror 10

Error code 10: No child processes

# /usr/local/mysql/bin/perror 127

Error code 127: Network is down

127 = Record-file is crashed

# /usr/local/mysql/bin/perror 134

Error code 134: Transport endpoint is not connected

134 = Record was already deleted (or record file crashed)